added; test case for #68

test/68.js

@@ -0,0 +1,47 @@
+
+// gm - Copyright Aaron Heckmann <aaron.heckmann+github@gmail.com> (MIT Licensed)
+var assert = require('assert')
+var url = require('url')
+var http = require('http')
+
+module.exports = function (_, dir, finish, gm) {
+  return finish();
+
+  // use this test when gm is not installed.
+  // it demonstrates that err is often passed as null (timing)
+  // to detect the stream error that the gm command is not installed,
+  //   you must test the stderr output manually for "execvp(): No such file or directory"
+
+  function done (err){
+    if (err) return finish(done.ran = err);
+    if (done.ran) return;
+    finish();
+  }
+
+  http.get(url.parse('http://www.google.com/images/srpr/logo3w.png'), function (resp) {
+    gm(resp, 'logo3w.png').stream(function (err, stdout, stderr) {
+      return finish();
+
+      if (err) {
+        console.error('Error processing image', err)
+      } else {
+        stdout.on('data', function (chunk) {
+          console.log('Chunk recieved', chunk.toString())
+        })
+        stdout.on('end', function () {
+          console.log('Stream ended')
+        })
+        stderr.on('data', function (chunk) {
+          console.log('err Chunk recieved', chunk.toString())
+        })
+        stderr.on('end', function () {
+          console.log('err Stream ended')
+        })
+      }
+    })
+  })
+  .on('error', function (err) {
+    console.error('Error fetching image', err)
+  })
+
+}